A number of special URLs exist purely for script use, as follows.
Table D.1. Special URLs
| URL | Type | Function | 
| reboot | HTML | Simple reboot | 
| reboot-when-free | HTML | Reboot when free | 
| reboot-cancel | HTML | Cancel the reboot when free if possible | 
| reboot-hard | HTML | Forced hard reboot now | 
| capability | HTML | Return XML capability | 
| schema | HTML | Return XML that is the internal format config edit schema | 
| timestamp | Text | Timestamp of config | 
| ip | Text | Your IP address as seen by the FireBrick | 
| version | Text | Current software version | 
| et | Text | Current software version, or an HTTP level error with text explaining why, such as Upgrade required. |